WO2021155739A1 - 接入层ip包的处理方法、装置及设备 - Google Patents

接入层ip包的处理方法、装置及设备 Download PDF

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Publication number
WO2021155739A1
WO2021155739A1 PCT/CN2021/071738 CN2021071738W WO2021155739A1 WO 2021155739 A1 WO2021155739 A1 WO 2021155739A1 CN 2021071738 W CN2021071738 W CN 2021071738W WO 2021155739 A1 WO2021155739 A1 WO 2021155739A1
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Prior art keywords
packet
entity
layer
access layer
functional entity
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PCT/CN2021/071738
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English (en)
French (fr)
Inventor
孙军帅
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中国移动通信有限公司研究院
中国移动通信集团有限公司
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Priority to US17/796,394 priority Critical patent/US20230344554A1/en
Publication of WO2021155739A1 publication Critical patent/WO2021155739A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/22—Manipulation of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/32—Release of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/06—Transport layer protocols, e.g. TCP [Transport Control Protocol] over wireless

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to an access layer Internet Protocol (IP) packet processing method, device and equipment.
  • IP Internet Protocol
  • AI artificial intelligence
  • Next-generation wireless networks are facing more complex application scenarios. If AI tools can be used to better serve users, the user experience can be greatly improved.
  • a media access control (Medium Access Control, MAC) scheduler implements logical channel (service) matching and air interface resources, but priority logical channel, service Quality (Quality of Service, QoS) guarantee parameters are all formulated by the upper layer (core network), and the priority and QoS guarantee parameters are formulated without referring to the radio quality of the air interface where the logical channel (service) is located.
  • service logical channel matching and air interface resources
  • priority logical channel, service Quality (Quality of Service, QoS) guarantee parameters are all formulated by the upper layer (core network)
  • QoS Quality of Service
  • L2 Layer 2
  • TCP Transmission Control Protocol
  • IP IP
  • the data processing surface of the 5G wireless access layer (Access Stratum, AS) protocol stack in the related technology still uses the data processing method in the related technology: L2 performs data processing on the air interface link, and has no interaction with the TCP/IP layer.
  • L2 performs data processing on the air interface link, and has no interaction with the TCP/IP layer.
  • the present disclosure provides a method, device and equipment for processing IP packets at the access layer, which realizes the processing of IP packets at the access layer.
  • the embodiments of the present disclosure provide the following solutions:
  • a method for processing access layer IP packets is applied to the user plane functional entity of layer 3 of the access layer, and the method includes:
  • the layer 3 user plane functional entity of the access layer receives an IP packet from the IP packet entity and sends it to at least one layer 2 functional entity of the access layer; or, receives an IP packet from the access layer A data packet or a control packet sent by a functional entity of layer 2 and sent to the IP packet entity; wherein, the user plane functional entity of layer 3 of the access layer, the IP packet entity, and layer 2 of the access layer
  • the functional entity is the functional entity on the terminal side or the functional entity of the network device.
  • the method for processing an access layer IP packet further includes: a layer 3 user plane functional entity of the access layer retransmits the IP packet when the transmission or reception of the IP packet fails.
  • the method for processing an access layer IP packet further includes: a user plane functional entity of layer 3 of the access layer sorting the received data packets sent by a functional entity of layer 2 of the access layer , Sending the sorted IP packet to the IP packet entity.
  • the user plane functional entity of layer 3 of the access layer includes: the source user plane functional entity and target user plane functional entity of layer 3 of the access layer, and further includes:
  • the source user plane function entity sends an IP packet to the IP packet entity, and the IP packet entity sends the IP packet to the target user plane function entity.
  • the IP packet entity is in communication connection with one or more user plane functional entities, and the IP packet entity distributes the IP packet to one or more user plane functional entities, and the method further includes:
  • the multiple user plane function entities receive the IP packet distributed by the IP packet entity.
  • the IP packet entity establishes, modifies or releases the user plane functional entity corresponding to the control plane functional entity through the layer 3 control plane functional entity, and the method further includes: the user The plane function entity receives an IP connection establishment, modification or release request sent by the control plane function entity corresponding to the user plane function entity;
  • the user plane functional entity establishes an IP connection with the IP packet entity and at least one layer 2 functional entity of the access layer, the modification of the IP connection, or Release of IP connection.
  • the method for processing an access layer IP packet further includes: the control plane functional entity on the terminal side receives the IP connection establishment signaling and the IP connection modification message sent from the control plane functional entity on the network device side. Command or IP connection release signaling; or, the control plane functional entity on the terminal side sends the IP connection establishment request signaling or the request signaling for modifying or releasing the IP connection to the control plane functional entity on the network device side.
  • the embodiment of the present disclosure also provides an access layer IP packet processing device, which is applied to the user plane functional entity of layer 3 of the access layer, including:
  • the transceiver module is configured to receive an IP packet from an IP packet entity and send it to at least one layer 2 functional entity of the access layer; or receive a data packet sent from a layer 2 functional entity of the access layer or Control packet and send it to the IP packet entity; wherein the user plane functional entity of layer 3, the IP packet entity of the access layer, and the functional entity of layer 2 of the access layer are functional entities on the terminal side Or the functional entity of the network device.
  • the transceiver module is further configured to retransmit the IP packet when the IP packet fails to be sent or received.
  • the transceiver module is further configured to sort the received data packets sent by the layer 2 functional entity of the access layer, and send the sorted IP packets to the IP packet entity.
  • the user plane functional entity of layer 3 of the access layer includes: the original user plane functional entity and target user plane functional entity of layer 3 of the access layer, and the transceiver module of the source user plane functional entity transfers IP The packet is sent to the IP packet entity, and the IP packet is sent to the transceiver module of the target user plane functional entity through the IP packet entity.
  • the IP packet entity is in communication connection with one or more user plane function entities, and the IP packet entity distributes the IP packet to one or more user plane function entities;
  • the transceiver modules of the multiple user plane function entities are also used to receive IP packets distributed by the IP packet entities.
  • the IP packet entity establishes, modifies or releases the user plane functional entity corresponding to the control plane functional entity through the layer 3 control plane functional entity;
  • the transceiver module is also configured to receive IP connection establishment signaling, IP connection modification signaling, or IP connection release signaling sent by the control plane function entity corresponding to the user plane function entity; Signaling, IP connection modification signaling or IP connection release signaling, to establish an IP connection with the IP packet entity and at least one layer 2 functional entity of the access layer, the modification of the IP connection, or the IP connection freed.
  • the embodiment of the present disclosure also provides a communication device, including:
  • the transceiver is used to receive an IP packet from an IP packet entity and send it to at least one layer 2 functional entity of the access layer; or to receive a data packet sent from a layer 2 functional entity of the access layer or Control packet and send it to the IP packet entity; wherein the user plane functional entity of layer 3, the IP packet entity of the access layer, and the functional entity of layer 2 of the access layer are those of the communication device.
  • the functional entity, the communication device is a terminal or a network device.
  • An embodiment of the present disclosure further provides a communication device, including a processor and a memory storing a computer program, and the computer program executes the method described above when the computer program is run by the processor.
  • Embodiments of the present disclosure also provide a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the method as described above.
  • the user plane function entity of layer 3 of the access layer receives an IP packet from the IP packet entity and sends it to at least one layer 2 functional entity of the access layer; or receives from the layer 2 functional entity of the access layer.
  • the data packet or control packet sent by the layer 2 functional entity of the access layer is sent to the IP packet entity; thus, the processing of the IP packet of the access layer is realized.
  • FIG. 1 is a schematic flowchart of a method for processing an access layer IP packet according to an embodiment of the disclosure
  • FIG. 2 is a schematic diagram of a network architecture connecting a terminal side and a network side according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of a process of establishing an IP connection according to an embodiment of the disclosure.
  • Fig. 4 is a block diagram of a module of an apparatus for processing an access layer IP packet according to an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of a communication device according to an embodiment of the disclosure.
  • the embodiment of the present disclosure provides a method for processing IP packets of the access layer, which is applied to the user plane functional entity of layer 3 of the access layer, and the method includes:
  • Step 11 The user plane functional entity of layer 3 of the access layer receives an IP packet from the IP packet entity and sends it to at least one functional entity of layer 2 of the access layer; or receives from the access layer
  • the data packet or control packet sent by the functional entity of layer 2 of the layer is sent to the IP packet entity; wherein, the user plane functional entity of layer 3 of the access layer, the IP packet entity, and the access layer
  • the functional entity of layer 2 is the functional entity on the terminal side or the functional entity of the network device.
  • the IP packet entity here can be an IP packet entity on the terminal side or network device side, which refers to a functional entity that can send or receive IP packets to the L2 layer of the access (AS) layer It can be the IP layer protocol entity on the terminal side or the network device side, the gateway function entity on the terminal side or the network device side, or the User Plane Function (UPF) entity of the core network on the network side, or It is the firewall functional entity of the core network on the network side.
  • AS access
  • UPF User Plane Function
  • the user plane functional entity of layer 3 of the access layer can be UP L3 , which refers to the IP functional entity located at the access layer, and is the distributed IP function (Distributed IP) located near the air interface for data processing (User Plane: The related functions of the user plane are collectively referred to.
  • the IP layer belongs to L3 (Layer 3: Layer 3) in the seven-layer model of the International Standardization Organization (ISO), this refers to the data plane functions related to the IP layer that sink to the AS layer.
  • L3 Layer 3
  • ISO International Standardization Organization
  • the access layer IP packet processing method may further include:
  • Step 12 The user plane function entity of layer 3 of the access layer retransmits the IP packet when the transmission or reception of the IP packet fails.
  • the data retransmission function of the user plane function entity UP L3 of the layer 3 of the access layer on the terminal side or the network device side is to ensure that the lower layers (Lower Layers) perform data transmission.
  • the TCP (Transmission Control Protocol) layer is not required for retransmission, and the retransmission is directly performed on the user plane functional entity UP L3 of layer 3 of the access layer, thereby reducing the impact on the TCP sending window and shortening the data sending time chain The delay required on the road.
  • TCP Transmission Control Protocol
  • the data retransmission function of the user plane function entity UP L3 of the layer 3 of the access layer shields the retransmission of the lower layer link and ensures that the upper layer is unaware of the data retransmission of the lower layer. No matter how many retransmissions are performed on UP L3 or its lower-layer links, or even lower-layer links are rebuilt because the number of retransmissions exceeds the specified threshold, the data for each retransmission is only obtained from UP L3 , and there is no need to transfer to UP L3 .
  • the upper layer makes an application, which means that UP L3 has a retransmission function, or data buffering until the lower layer is successfully sent.
  • UPL3 If UPL3 has a retransmission function, it will initiate the retransmission of data packets after monitoring the low-level transmission failure. This function requires UP L3 to have the monitoring function of low-level data packet transmission failure, such as receiving data sent by the peer UPL3 functional entity Receive status information, and confirm whether the data packet needs to be retransmitted according to the feedback information. If UP L3 has the function of ensuring correct transmission of data, UP L3 caches every data packet sent at the lower layer locally.
  • the low-level transmission When the low-level transmission is successful, it informs UP L3 that the corresponding data has been successfully transmitted, and UP L3 releases the corresponding data packet in the buffer; when the low-level transmission fails, it notifies UP L3 that the corresponding data packet has not been successfully transmitted and needs to be retransmitted.
  • UP L3 can choose to send on the original lower-layer link or on other available links; UP L3 sends these data packets in the same way as new data. Regardless of the method, the data packet buffered by UP L3 is discarded until the lower layer is successfully sent, otherwise it will always support the lower layer link to send, ensuring that the IP packet entity is unaware of the retransmission of the lower layer link.
  • the access layer IP packet processing method may further include:
  • Step 13 The user plane functional entity of layer 3 of the access layer sorts the received data packets sent by the functional entity of layer 2 of the access layer, and sends the sorted IP packet to the IP packet entity.
  • the ordering function of the user plane function entity UP L3 of the layer 3 of the access layer on the terminal side or the network device side is to ensure that when the user plane function entity receives data from the lower layer and sends it to the IP packet entity, it can Submit to the senior management in the order of priority.
  • IP packet entity When an IP packet entity is connected to one or more UP L3 at the same time, when receiving data, the IP packet entity has the ability to send the data received from one or more UP L3 to the higher layer in order. When sending data, the IP packet entity has the ability to distribute the data to one or more UP L3 in order.
  • a UP L3 When a UP L3 is connected to one or more lower layer (Lower Layer) functional units or entities at the same time, when receiving data, the UP L3 has the ability to send the data received from multiple lower layers to the IP packet entity in order.
  • Lower Layer Lower Layer
  • UP L3 cannot send data packets out of order to the IP packet entity.
  • UP L3 has the ability to distribute the data to one or more lower layers in order.
  • UP L3 can have its own packet identifier for receiving and sending data packets in sequence, for example, UP L3 itself defines the sequence number (Sequence Number, SN) of the data packet; it can also use the lower layer sequence to receive and send data packet identifiers, For example, use the SN number provided by the L2 protocol entity (for example, the PDCP layer assigns an SN number to each data packet).
  • SN Sequence Number
  • the user plane functional entity of layer 3 of the access layer includes: the original user plane functional entity and target user plane functional entity of layer 3 of the access layer, and the access layer IP packet
  • the processing method can also include:
  • Step 14 The source user plane function entity sends an IP packet to the IP packet entity, and the IP packet entity sends the IP packet to the target user plane function entity.
  • the IP packet entity when the source UP L3 and the target UP L3 are switched when the terminal moves, the IP packet entity has the function of assisting the source and target UP L3 to implement data forwarding.
  • the IP packet entity buffers the data packet sent to the UP L3 .
  • the UP L3 When the UP L3 is successfully sent, it notifies the IP packet entity to discard the buffered data. or,
  • the IP packet entity does not buffer the data packets sent to UP L3 .
  • the data forwarding interaction between the IP packet entity and each UP L3 including the IP packet entity instructing the source and destination UP L3 to conduct data
  • the source UP L3 can first report the data packet that needs to be forwarded or the identity indication information of the data packet (the IP packet entity caches these data) to the IP packet entity, and then the IP packet entity sends the data packet to the destination UP L3 .
  • the IP packet entity is in communication connection with one or more of the user plane function entities, and the IP packet entity distributes the IP packet to one or more of the user plane function entities .
  • the processing method of the access layer IP packet may also include:
  • Step 15 The multiple user plane function entities receive the IP packets distributed by the IP packet entities.
  • the IP packet entity when an IP packet entity is connected to one or more UP L3s at the same time, when sending data, the IP packet entity can distribute data to multiple UP L3s at the same time, and has a flow control function.
  • UP L3 when sending, UP L3 can distribute data to multiple lower layers at the same time, and has a flow control function.
  • the IP packet entity establishes, modifies or releases the user plane functional entity corresponding to the control plane functional entity through the layer 3 control plane functional entity, and accesses
  • the processing method of the layer IP packet may also include:
  • Step 16 The user plane functional entity receives the IP connection establishment signaling, the IP connection modification signaling, or the IP connection release signaling sent by the control plane functional entity corresponding to the user plane functional entity;
  • Step 17 the user plane function entity establishes a connection with the IP packet entity and at least one layer 2 of the access layer according to the signaling of the IP connection establishment, the IP connection modification signaling, or the IP connection release signaling. IP connection between functional entities, modification of IP connection, or release of IP connection.
  • the IP packet entity can control the establishment, modification or release of UP L3.
  • the IP packet entity can have a direct control function, and can trigger a control plane (Control Plane, CP) to generate end-to-end signaling to establish UP L3 .
  • Control Plane Control Plane, CP
  • the method for processing access layer IP packets may further include: the control plane function entity on the terminal side receives the IP connection establishment signaling and IP connection modification sent from the control plane function entity on the network device side Signaling or IP connection release signaling; or,
  • the control plane functional entity on the terminal side sends the IP connection establishment request signaling, and the request signaling to modify or release the IP connection to the control plane functional entity on the network device side.
  • control plane functional entity on the terminal side interacts with the control plane functional entity on the network device side, and the process of establishing or releasing an IP connection includes:
  • Step 31 The UP L3 on the network side generates an IP link setup request (IP Link Setup Request) according to the resolved IP information.
  • IP Link Setup Request IP Link Setup Request
  • the message carries the IP source address, destination IP address, and identity information of the IP flow.
  • Step 32 After receiving the request, the control plane function entity CP L3 on the network side configures the terminal side (RRC Reconfiguration (IP Tunnel Setup)) through radio resource control (Radio Resource Control, RRC) reconfiguration signaling.
  • the signaling carries related information about the IP tunnel configuration, including the source IP address, the destination IP address, and the lower-layer bearer information that carries the IP flow, such as the lower-layer bearer identity information, the lower-layer bearer QoS-related parameters, the lower-layer bearer and the IP flow Mapping information, etc.
  • Step 33 After completing the air interface RRC reconfiguration signaling, the terminal side and the network side configure their respective UP L3 functions.
  • Step 34 After completing the configuration, the terminal side sends a response message to the network side.
  • both the terminal side and the network side have one or more peer IP packet entities.
  • the terminal side needs an UP L3 functional entity with the same function as the network side connected to the terminal.
  • the terminal is connected to two independent network devices (such as base stations) at the same time, and each independent base station has a UP L3 functional entity.
  • the terminal side can establish two independent UP L3 functional entities. It is also possible to establish a UP L3 functional entity.
  • the link connecting the same terminal can use a primary base station to connect to multiple secondary base stations at the same time.
  • the terminal link on the secondary base station is connected to the UP on the primary base station. L3 functional entity, therefore, only one UP L3 functional entity is required on the terminal side at this time.
  • the corresponding UPL3 function is established according to the signaling of the network equipment, including the connection between the IP packet entity and the UP L3 , and the connection between the UP L3 and the lower layer link.
  • a terminal establishes multiple UP L3 functional entities, it means that there are multiple high-level links between the terminal and the network side.
  • a terminal establishes only one UP L3 functional entity, it means that there is only one high-level connection between the terminal and the network side.
  • a UP L3 functional entity is connected to multiple lower-layer functional entities, it indicates that there are multiple lower-layer links between the terminal and the network side.
  • the range of data routing at the TCP/IP layer is reduced, that is, data can only be routed within the range of one AS layer, which will cause a lot of Data Forwarding.
  • TCP/IP is deployed close to the AS, the link will be shortened, the round trip time (Round Trip Time, RTT) length will be reduced, and the data transmission and retransmission delay will be shortened.
  • a distributed IP function for endogenous AI (Native AI) is provided; the IP function of the AS layer; the user plane (UP) of the wireless access network is reconstructed to realize L3 Integration with L2.
  • the embodiment of the present disclosure also provides an access layer IP packet processing device 40, which is applied to the user plane functional entity of layer 3 of the access layer, including:
  • the transceiver module 41 is configured to receive an IP packet from an IP packet entity and send it to at least one layer 2 functional entity of the access layer; or receive a data packet sent from a layer 2 functional entity of the access layer Or a control packet, and sent to the IP packet entity; wherein the user plane functional entity of layer 3, the IP packet entity of the access layer, and the functional entity of layer 2 of the access layer are terminal-side functions An entity or a functional entity of a network device.
  • the transceiver module 41 is further configured to retransmit the IP packet when the transmission or reception of the IP packet fails.
  • the transceiver module 41 is further configured to sort the received data packets sent by the layer 2 functional entity of the access layer, and send the sorted IP packets to the IP packet entity.
  • the user plane functional entity of layer 3 of the access layer includes: the original user plane functional entity and target user plane functional entity of layer 3 of the access layer, and the transceiver module of the source user plane functional entity transfers IP The packet is sent to the IP packet entity, and the IP packet is sent to the transceiver module of the target user plane functional entity through the IP packet entity.
  • the IP packet entity is in communication connection with one or more user plane functional entities, and the IP packet entity distributes the IP packet to one or more user plane functional entities;
  • the transceiver modules 41 of the multiple user plane function entities are also used to receive IP packets distributed by the IP packet entities.
  • the IP packet entity establishes, modifies or releases the user plane functional entity corresponding to the control plane functional entity through the layer 3 control plane functional entity;
  • the transceiving module 41 is also configured to receive IP connection establishment signaling, IP connection modification signaling, or IP connection release signaling sent by the control plane function entity corresponding to the user plane function entity; and establish according to the IP connection To establish an IP connection, IP connection modification or IP connection with the IP packet entity and at least one layer 2 functional entity of the access layer Release.
  • the device is a device corresponding to the method shown in FIG. 1 above, and all the implementation manners in the above method embodiments are applicable to the embodiments of the device, and the same technical effects can also be achieved.
  • the device may also include a processing module 42 for processing data received and received by the transceiver module 41.
  • an embodiment of the present disclosure further provides a communication device 50, including:
  • the transceiver 51 is configured to receive an IP packet from an IP packet entity and send it to at least one layer 2 functional entity of the access layer; or receive a data packet sent from a layer 2 functional entity of the access layer Or a control packet and sent to the IP packet entity; wherein the user plane functional entity of layer 3, the IP packet entity of the access layer, and the functional entity of layer 2 of the access layer are the communication equipment
  • the functional entity of the communication device 50 is a terminal or a network device.
  • the transceiver 51 is further configured to retransmit the IP packet when the transmission or reception of the IP packet fails.
  • the transceiver 51 is further configured to sort the received data packets sent by the layer 2 functional entity of the access layer, and send the sorted IP packets to the IP packet entity.
  • the user plane functional entity of layer 3 of the access layer includes: the original user plane functional entity and target user plane functional entity of layer 3 of the access layer, and the transceiver of the source user plane functional entity transfers IP The packet is sent to the IP packet entity, and the IP packet is sent to the transceiver of the target user plane function entity through the IP packet entity.
  • the IP packet entity is in communication connection with one or more user plane functional entities, and the IP packet entity distributes the IP packet to one or more user plane functional entities;
  • the transceivers 51 of the multiple user plane function entities are also used to receive IP packets distributed by the IP packet entities.
  • the IP packet entity establishes, modifies or releases the user plane functional entity corresponding to the control plane functional entity through the layer 3 control plane functional entity;
  • the transceiver 51 is also configured to receive IP connection establishment signaling, IP connection modification signaling, or IP connection release signaling sent by the control plane function entity corresponding to the user plane function entity; and establish according to the IP connection To establish an IP connection, IP connection modification or IP connection with the IP packet entity and at least one layer 2 functional entity of the access layer Release.
  • the communication device is a communication device corresponding to the method shown in FIG. 1 above, and all implementation manners in the foregoing method embodiment are applicable to the device embodiment, and the same technical effect can also be achieved.
  • the communication device may further include: a processor 52 and a memory 53; the transceiver 51 and the processor 52, as well as the transceiver 51 and the memory 53, can all be connected through a bus interface, and the functions of the transceiver 51 can be determined by the processor. 52, the function of the processor 52 can also be implemented by the transceiver 51.
  • the embodiment of the present disclosure further provides a communication device, including a processor and a memory storing a computer program, and the computer program executes the method described in FIG. 1 when the computer program is run by the processor.
  • Embodiments of the present disclosure also provide a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the method described in FIG. 1 above.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present disclosure essentially or the part that contributes to the related technology or the part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including several
  • the instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.
  • the program can be stored in a computer readable storage medium. When executed, it may include the procedures of the above-mentioned method embodiments.
  • the storage medium may be a magnetic disk, an optical disc, a read-only memory (Read-Only Memory, ROM), or a random access memory (Random Access Memory, RAM), etc.
  • modules, units, and sub-units can be implemented in one or more application specific integrated circuits (ASIC), digital signal processors (Digital Signal Processor, DSP), and digital signal processing equipment (DSP Device, DSPD). ), programmable logic devices (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, used to execute the present disclosure Other electronic units or a combination of the functions described above.
  • ASIC application specific integrated circuits
  • DSP Digital Signal Processor
  • DSP Device digital signal processing equipment
  • PLD programmable logic devices
  • Field-Programmable Gate Array Field-Programmable Gate Array
  • FPGA Field-Programmable Gate Array
  • the technology described in the embodiments of the present disclosure can be implemented by modules (for example, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
  • the software codes can be stored in the memory and executed by the processor.
  • the memory can be implemented in the processor or external to the processor.
  • each component or each step can be decomposed and/or recombined. These decomposition and/or recombination should be regarded as equivalent solutions of the present disclosure.
  • the steps of performing the above series of processing can naturally be performed in chronological order in the order of description, but do not necessarily need to be performed in chronological order, and some steps can be performed in parallel or independently of each other.
  • Those of ordinary skill in the art can understand that all or any of the steps or components of the methods and devices of the present disclosure can be used in any computing device (including a processor, storage medium, etc.) or a network of computing devices, using hardware and firmware. , Software, or a combination of them. This can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present disclosure.
  • the purpose of the present disclosure can also be realized by running a program or a group of programs on any computing device.
  • the computing device may be a well-known general-purpose device. Therefore, the purpose of the present disclosure can also be achieved only by providing a program product containing program code for implementing the method or device. That is, such a program product also constitutes the present disclosure, and a storage medium storing such a program product also constitutes the present disclosure.
  • the storage medium may be any well-known storage medium or any storage medium developed in the future. It should also be pointed out that in the device and method of the present disclosure, obviously, each component or each step can be decomposed and/or recombined.

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Abstract

本公开的实施例提供一种接入层IP包的处理方法、装置及设备，接入层IP包的处理方法应用于接入层的层3的用户面功能实体，所述方法包括：所述接入层的层3的用户面功能实体，接收来自IP包实体的IP包，并发送给至少一个所述接入层的层2的功能实体；或者，接收来自所述接入层的层2的功能实体发送的数据包或者控制包，并发送给所述IP包实体；其中，所述接入层的层3的用户面功能实体、IP包实体以及所述接入层的层2的功能实体，为终端侧的功能实体或者网络设备的功能实体。

Description

接入层IP包的处理方法、装置及设备
相关申请的交叉引用
本申请主张在2020年2月3日在中国提交的中国专利申请号No.202010078494.0的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，特别是指一种接入层互联网协议(Internet Protocol，IP)包的处理方法、装置及设备。
背景技术
自洽(self-consistent)简单地说就是按照自身的逻辑推演的话，自己可以证明自己至少不是矛盾或者错误的，这就是简单的自洽性。科学研究本身就是遵循自洽性的，建立于客观基础上，反之则建立于主观之上，最终归属不可证伪与证明，一个不能够满足自洽性的理论或者方法显然是不攻自破的。
内生AI(Native AI)的概念被广泛提及，在无线网络中使用人工智能(Artificial Intelligence，AI)工具进行无线网络的无线资源优化。下一代无线网络面临着更复杂的应用场景，如果能够运用AI工具更好的服务用户，能够极大的提高用户体验。
第五代(5 th Generation，5G)无线接入网协议栈通过媒体访问控制(Medium Access Control，MAC)的调度实现了逻辑信道(业务)和空口资源的匹配，但是逻辑信道的优先级、服务质量(Quality of Service，QoS)保障参数等都是上层(核心网)制定，制定优先级和QoS保障参数时没有参考该逻辑信道(业务)所在的空口无线质量。
5G无线接入网中，当层2(Layer 2，L2)的数据发送失败后，就要依靠更高层的传输控制协议(Transmission Control Protocol，TCP)/IP层进行重传，这样会导致TCP发送窗口的快速缩小和数据包重传时延的变长。并且对与TCP发送窗口的控制与低层发送匹配的问题也被研究很多年，一直通过TCP能够根据低层信道质量进行重传和发送窗口的控制。
面向下一代移动通信的极简网络(Lite Network)的设计目标，需要这种方式进行重新设计。
相关技术中的5G无线接入层(Access Stratum，AS)协议栈的数据处理面仍然延用了相关技术中的数据处理方式：L2进行空口链路的数据处理，与TCP/IP层无互动。
发明内容
本公开提供了一种接入层IP包的处理方法、装置及设备，实现了接入层的IP包的处理。
为解决上述技术问题，本公开的实施例提供如下方案：
一种接入层IP包的处理方法，应用于接入层的层3的用户面功能实体，所述方法包括：
所述接入层的层3的用户面功能实体，接收来自IP包实体的IP包，并发送给至少一个所述接入层的层2的功能实体；或者，接收来自所述接入层的层2的功能实体发送的数据包或者控制包，并发送给所述IP包实体；其中，所述接入层的层3的用户面功能实体、IP包实体以及所述接入层的层2的功能实体，为终端侧的功能实体或者网络设备的功能实体。
可选的，接入层IP包的处理方法，还包括：所述接入层的层3的用户面功能实体，在所述IP包发送或者接收失败时，对所述IP包进行重传。
可选的，接入层IP包的处理方法，还包括：所述接入层的层3的用户面功能实体，对接收的所述接入层的层2的功能实体发送的数据包进行排序，将排序后的IP包发送给所述IP包实体。
可选的，所述接入层的层3的用户面功能实体包括：接入层的层3的源用户面功能实体和目标用户面功能实体，还包括：
所述源用户面功能实体将IP包发送给所述IP包实体，通过所述IP包实体将所述IP包发送给所述目标用户面功能实体。
可选的，所述IP包实体与一个或者多个所述用户面功能实体通信连接，所述IP包实体将IP包分发给一个或者多个所述用户面功能实体，所述方法还包括：
多个所述用户面功能实体接收所述IP包实体分发的IP包。
可选的，所述IP包实体通过所述层3的控制面功能实体，建立、修改或者释放与所述控制面功能实体对应的所述用户面功能实体，所述方法还包括：所述用户面功能实体接收与所述用户面功能实体对应的控制面功能实体发送的IP连接建立、修改或者释放请求；
所述用户面功能实体根据所述IP连接建立、修改或者释放请求，建立与所述IP包实体以及至少一个所述接入层的层2的功能实体之间的IP连接、IP连接的修改或者IP连接的释放。
可选的，接入层IP包的处理方法，还包括：终端侧的控制面功能实体接收来自所述网络设备侧的控制面功能实体发送的所述IP连接建立的信令、IP连接修改信令或者IP连接释放信令；或者，终端侧的控制面功能实体向所述网络设备侧的控制面功能实体发送IP连接建立的请求信令、修改或者释放所述IP连接的请求信令。
本公开的实施例还提供一种接入层IP包的处理装置，应用于接入层的层3的用户面功能实体，包括：
收发模块，用于接收来自IP包实体的IP包，并发送给至少一个所述接入层的层2的功能实体；或者接收来自所述接入层的层2的功能实体发送的数据包或者控制包，并发送给所述IP包实体；其中，所述接入层的层3的用户面功能实体、IP包实体以及所述接入层的层2的功能实体，为终端侧的功能实体或者网络设备的功能实体。
可选的，接入层IP包的处理装置，所述收发模块还用于在所述IP包发送或者接收失败时，对所述IP包进行重传。
可选的，所述收发模块还用于对接收的所述接入层的层2的功能实体发送的数据包进行排序，将排序后的IP包发送给所述IP包实体。
可选的，所述接入层的层3的用户面功能实体包括：接入层的层3的原用户面功能实体和目标用户面功能实体，所述源用户面功能实体的收发模块将IP包发送给所述IP包实体，通过所述IP包实体将所述IP包发送给所述目标用户面功能实体的收发模块。
可选的，所述IP包实体与一个或者多个所述用户面功能实体通信连接， 所述IP包实体将IP包分发给一个或者多个所述用户面功能实体；
多个所述用户面功能实体的收发模块还用于接收所述IP包实体分发的IP包。
可选的，所述IP包实体通过所述层3的控制面功能实体，建立、修改或者释放与所述控制面功能实体对应的所述用户面功能实体；
所述收发模块还用于接收与所述用户面功能实体对应的控制面功能实体发送的IP连接建立的信令、IP连接修改信令或者IP连接释放信令；并根据所述IP连接建立的信令、IP连接修改信令或者IP连接释放信令，建立与所述IP包实体以及至少一个所述接入层的层2的功能实体之间的IP连接、IP连接的修改或者IP连接的释放。
本公开的实施例还提供一种通信设备，包括：
收发机，用于接收来自IP包实体的IP包，并发送给至少一个所述接入层的层2的功能实体；或者接收来自所述接入层的层2的功能实体发送的数据包或者控制包，并发送给所述IP包实体；其中，所述接入层的层3的用户面功能实体、IP包实体以及所述接入层的层2的功能实体，为所述通信设备的功能实体，所述通信设备为终端或者网络设备。
本公开的实施例还提供一种通信设备，包括：处理器、存储有计算机程序的存储器，所述计算机程序被处理器运行时，执行如上所述的方法。
本公开的实施例还提供一种计算机可读存储介质，包括指令，当所述指令在计算机运行时，使得计算机执行如上所述的方法。
本公开的上述方案至少包括以下有益效果：
本公开的上述方案，通过接入层的层3的用户面功能实体，接收来自IP包实体的IP包，并发送给至少一个所述接入层的层2的功能实体；或者接收来自所述接入层的层2的功能实体发送的数据包或者控制包，并发送给所述IP包实体；从而实现接入层的IP包的处理。
附图说明
图1为本公开的实施例接入层IP包的处理方法的流程示意图；
图2为本公开的实施例终端侧和网络侧连接的网络架构示意图；
图3为本公开的实施例的一种IP连接建立的流程示意图。
图4为本公开的实施例的接入层IP包的处理装置的模块框图；
图5为本公开的实施例通信设备的架构示意图。
具体实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
如图1所示，本公开的实施例提供一种接入层IP包的处理方法，应用于接入层的层3的用户面功能实体，所述方法包括：
步骤11，所述接入层的层3的用户面功能实体，接收来自IP包实体的IP包，并发送给至少一个所述接入层的层2的功能实体；或者接收来自所述接入层的层2的功能实体发送的数据包或者控制包，并发送给所述IP包实体；其中，所述接入层的层3的用户面功能实体、IP包实体以及所述接入层的层2的功能实体，为终端侧的功能实体或者网络设备的功能实体。
如图2所示，这里的IP包实体可以是终端侧或者网络设备侧的IP包实体(IP Packet Entity)，指代能够给接入(AS)层的L2层发送或者接收IP包的功能实体，可以是终端侧或者网络设备侧的IP层协议实体，可以是终端侧或者网络设备侧的网关功能实体，也可以是网络侧核心网的用户面功能(User Plane Function，UPF)实体，也可以是网络侧核心网的防火墙功能实体等。
这里的接入层的层3的用户面功能实体可以是UP L3，指位于接入层的IP功能实体，是分布的IP功能(Distributed IP)位于靠近空口部署的接入层的数据处理(User Plane：用户面)的相关功能统称。因为IP层在国际标准化组织(International Standardization Organization，ISO)七层模型里面属于L3(Layer 3：层3)，在此指代下沉到AS层的IP层相关的数据面功能。
本公开的一可选的实施例中，接入层IP包的处理方法，还可以包括：
步骤12，所述接入层的层3的用户面功能实体，在所述IP包发送或者接收失败时，对所述IP包进行重传。
该实施例中，终端侧或者网络设备侧的所述接入层的层3的用户面功能实体UP L3的数据重传功能是保证低层(Lower Layers)进行数据传输时，当数据传输失败后，不需要TCP(传输控制协议)层进行重传，直接在所述接入层的层3的用户面功能实体UP L3进行重传，从而降低对TCP发送窗口的影响，也缩短了数据发送时链路上需要的时延。
该实施例中，接入层的层3的用户面功能实体UP L3的数据重传功能屏蔽低层链路的重传并确保上层对低层的数据重传无感知。无论UP L3或者其低层的链路进行多少次重传，甚至低层链路因为重传次数超过规定门限而进行重建，每次重传的数据都只从UP L3中得到，不需要向UP L3的上层进行申请，这就意味着UP L3具有重传功能，或者数据缓存直到低层发送成功的功能。如果UPL3具有重传功能，则在监测低层发送失败后，发起数据包的重传，此功能需要UP L3具有低层数据包发送失败的监测功能，比如收到对等的UPL3功能实体发送来的数据接收状态信息，根据该反馈信息确认数据包是否需要重传。如果UP L3具有数据保障正确发送功能，则UP L3把发送个低层的每一个数据包都缓存在本地。当低层发送成功后，通知UP L3相应的数据已经发送成功了，UP L3释放缓存的对应数据包；当低层发送失败后，通知UP L3相应的数据包没有发送成功需要重传，对于这些没有发送成功的数据包，UP L3可以选择在原有低层链路上发送，也可以在其它可用的链路上发送；UP L3在发送这些数据包时，按照发送新数据的方式发送。无论何种方式，UP L3缓存的数据包直到低层发送成功再丢弃，否则一直支撑低层链路进行发送，确保IP包实体对低层链路的重传无感知。
本公开的一可选的实施例中，接入层IP包的处理方法，还可以包括：
步骤13，所述接入层的层3的用户面功能实体，对接收的所述接入层的层2的功能实体发送的数据包进行排序，将排序后的IP包发送给所述IP包实体。
该实施例中，终端侧或者网络设备侧的所述接入层的层3的用户面功能实体UP L3的排序功能是保证该用户面功能实体从低层接收到数据给IP包实体发送时，能够按照先后的顺序向高层递交。
当一个IP包实体同时连接一个或者多个UP L3时，接收数据时，IP包实 体具有把从一个或者多个UP L3接收到的数据按照顺序发送给高层。数据发送时，IP包实体具有把数据按照顺序分发给一个或者多个UP L3。
当一个UP L3同时连接一个或者多个低层(Lower Layer)功能单元或者实体时，接收数据时，UP L3具有把从多个低层接收到的数据按照顺序发送给IP包实体。
UP L3不能把数据包乱序发送给IP包实体。数据发送时，UP L3具有把数据按照顺序分发给一个或者多个低层。UP L3可以自身具有数据包的顺序接收和发送的数据包标识，比如UP L3自身定义数据包的序列号(Sequence Number，SN)；也可以使用低层的顺序接收和发送数据包的数据包标识，比如使用L2的协议实体提供的SN号(例如PDCP层给每个数据包分配一个SN号)。
本公开的一可选的实施例中，所述接入层的层3的用户面功能实体包括：接入层的层3的原用户面功能实体和目标用户面功能实体，接入层IP包的处理方法还可以包括：
步骤14，所述源用户面功能实体将IP包发送给所述IP包实体，通过所述IP包实体将所述IP包发送给所述目标用户面功能实体。
该实施例中，当终端移动时，出现源UP L3和目标UP L3切换时，IP包实体具有协助源和目标UP L3实现数据前转的功能。
IP包实体和UP L3之间具有数据包收发状态交互过程，IP包实体缓存发送给UP L3的数据包，当UP L3发送成功时，通知IP包实体把缓存的数据丢弃。或者，
IP包实体不缓存发送给UP L3的数据包，当需要数据前转时，IP包实体和每个UP L3之间进行数据前转的交互，包括IP包实体指示源和目的UP L3间进行数据交互，也可以源UP L3先把需要前转的数据包或者数据包的身份指示信息(IP包实体缓存着这些数据)上报给IP包实体，然后有IP包实体把数据包发送给目的UP L3。
本公开的一可选的实施例中，所述IP包实体与一个或者多个所述用户面功能实体通信连接，所述IP包实体将IP包分发给一个或者多个所述用户面功能实体，接入层IP包的处理方法还可以包括：
步骤15，多个所述用户面功能实体接收所述IP包实体分发的IP包。
该实施例中，当一个IP包实体同时连接一个或者多个UP L3时，发送数据时，IP包实体能够同时给多个UP L3分发数据，具有流量控制功能。当一个UP L3同时连接一个或者多个低层时，发送时，UP L3能够同时给多个低层分发数据，具有流量控制功能。
本公开的一可选的实施例中，所述IP包实体通过所述层3的控制面功能实体，建立、修改或者释放与所述控制面功能实体对应的所述用户面功能实体，接入层IP包的处理方法还可以包括：
步骤16，所述用户面功能实体接收与所述用户面功能实体对应的控制面功能实体发送的IP连接建立的信令、IP连接修改信令或者IP连接释放信令；
步骤17，所述用户面功能实体根据所述IP连接建立的信令、IP连接修改信令或者IP连接释放信令，建立与所述IP包实体以及至少一个所述接入层的层2的功能实体之间的IP连接、IP连接的修改或者IP连接的释放。
该实施例中，IP包实体可以控制UP L3的建立、修改或者释放。IP包实体可以具有直接的控制功能，可以触发控制面(Control Plane，CP)产生端到端的信令建立UP L3。
可选的，接入层IP包的处理方法，还可以包括：终端侧的控制面功能实体接收来自所述网络设备侧的控制面功能实体发送的所述IP连接建立的信令、IP连接修改信令或者IP连接释放信令；或者，
终端侧的控制面功能实体向所述网络设备侧的控制面功能实体发送IP连接建立的请求信令、修改或者释放所述IP连接的请求信令。
如图3所示，该实施例中，终端侧的控制面功能实体和所述网络设备侧的控制面功能实体交互，进行IP连接建立或者IP连接释放的过程包括：
步骤31，网络侧的UP L3根据解析的IP信息，产生建立IP连接的请求(IP Link Setup Request)。在该消息中，携带了该IP流(IP Flow)的IP源地址、目的IP地址、该IP流的身份标识信息。
步骤32，网络侧的控制面功能实体CP L3收到请求后，通过无线资源控制(Radio Resource Control，RRC)重配置信令配置终端侧(RRC Reconfiguration(IP Tunnel Setup))。该信令中携带了IP隧道配置的相关信息，包括源IP地址，目的IP地址，承载该IP流的低层承载信息，诸如低层承载 身份标识信息，低层承载QoS相关的参数，低层承载和IP流的映射信息等。
步骤33，终端侧和网络侧在完成空口RRC重配置信令后，分别配置各自的UP L3功能。
步骤34，终端侧完成配置后，给网络侧发送响应消息。
本公开的上述实施例中，如图2所示，针对一个终端的端到端链路，终端侧和网络侧都具有一个或者多个对等的IP包实体。为了和网络侧进行对等，终端侧需要和连接该终端的网络侧相同功能的UP L3功能实体。
图2所示的系统架构中，终端同时连接了两个独立的网络设备(如基站)，每个独立基站上具有UP L3功能实体，此时终端侧可以建立两个独立的UP L3功能实体，也可以建立一个UP L3功能实体。同时，因为网络侧基站设备的形态的灵活性，连接同一个终端的链路可以采用一个主基站同时连接多个辅基站的方式，此时终端在辅基站上的链路连接主基站上的UP L3功能实体，所以，终端侧此时只需要一个UP L3功能实体即可。
当终端接入网络设备后，根据网络设备的信令建立相对应的UPL3功能，包括IP包实体和UP L3的连接，UP L3和低层链路的连接。当一个终端建立多个UP L3功能实体时，则说明该终端与网络侧存在多个高层链接。当一个终端只建立一个UP L3功能实体时，则说明该终端与网络侧只存在一个高层连接。当一个UP L3功能实体连接多个低层功能实体时，则说明该终端与网络侧存在多个低层链接。
对于网络侧，因为如果把整个TCP/IP下沉到AS层，则降低了TCP/IP层数据能够路由的范围，即只能在一个AS层的范围内进行数据路由，当切换时会造成大量数据的前转搬移(Data Forwarding)。如果把TCP/IP靠近AS部署，则会缩短链路，降低往返时间(Round Trip Time，RTT)的长度，缩短数据发送和重传的时延。
本公开的上述实施例中，提供了一种面向内生AI(Native AI)的分布式IP功能；AS层的IP功能；重构无线接入网的用户面(User Plane，UP)，实现L3和L2的融合。
如图4所示，本公开的实施例还提供一种接入层IP包的处理装置40，应用于接入层的层3的用户面功能实体，包括：
收发模块41，用于接收来自IP包实体的IP包，并发送给至少一个所述接入层的层2的功能实体；或者接收来自所述接入层的层2的功能实体发送的数据包或者控制包，并发送给所述IP包实体；其中，所述接入层的层3的用户面功能实体、IP包实体以及所述接入层的层2的功能实体，为终端侧的功能实体或者网络设备的功能实体。
可选的，所述收发模块41还用于在所述IP包发送或者接收失败时，对所述IP包进行重传。
可选的，所述收发模块41还用于对接收的所述接入层的层2的功能实体发送的数据包进行排序，将排序后的IP包发送给所述IP包实体。
可选的，所述接入层的层3的用户面功能实体包括：接入层的层3的原用户面功能实体和目标用户面功能实体，所述源用户面功能实体的收发模块将IP包发送给所述IP包实体，通过所述IP包实体将所述IP包发送给所述目标用户面功能实体的收发模块。
可选的，所述IP包实体与一个或者多个所述用户面功能实体通信连接，所述IP包实体将IP包分发给一个或者多个所述用户面功能实体；
多个所述用户面功能实体的收发模块41还用于接收所述IP包实体分发的IP包。
可选的，所述IP包实体通过所述层3的控制面功能实体，建立、修改或者释放与所述控制面功能实体对应的所述用户面功能实体；
所述收发模块41还用于接收与所述用户面功能实体对应的控制面功能实体发送的IP连接建立的信令、IP连接修改信令或者IP连接释放信令；并根据所述IP连接建立的信令、IP连接修改信令或者IP连接释放信令，建立与所述IP包实体以及至少一个所述接入层的层2的功能实体之间的IP连接、IP连接的修改或者IP连接的释放。
需要说明的是，该装置是与上述图1所示方法对应的装置，上述方法实施例中所有实现方式均适用于该装置的实施例中，也能达到相同的技术效果。该装置还可以包括处理模块42，用于对收发模块41收发的数据进行处理等。
如图5所示，本公开的实施例还提供一种通信设备50，包括：
收发机51，用于接收来自IP包实体的IP包，并发送给至少一个所述接 入层的层2的功能实体；或者接收来自所述接入层的层2的功能实体发送的数据包或者控制包，并发送给所述IP包实体；其中，所述接入层的层3的用户面功能实体、IP包实体以及所述接入层的层2的功能实体，为所述通信设备的功能实体，所述通信设备50为终端或者网络设备。
可选的，所述收发机51还用于在所述IP包发送或者接收失败时，对所述IP包进行重传。
可选的，所述收发机51还用于对接收的所述接入层的层2的功能实体发送的数据包进行排序，将排序后的IP包发送给所述IP包实体。
可选的，所述接入层的层3的用户面功能实体包括：接入层的层3的原用户面功能实体和目标用户面功能实体，所述源用户面功能实体的收发机将IP包发送给所述IP包实体，通过所述IP包实体将所述IP包发送给所述目标用户面功能实体的收发机。
可选的，所述IP包实体与一个或者多个所述用户面功能实体通信连接，所述IP包实体将IP包分发给一个或者多个所述用户面功能实体；
多个所述用户面功能实体的收发机51还用于接收所述IP包实体分发的IP包。
可选的，所述IP包实体通过所述层3的控制面功能实体，建立、修改或者释放与所述控制面功能实体对应的所述用户面功能实体；
所述收发机51还用于接收与所述用户面功能实体对应的控制面功能实体发送的IP连接建立的信令、IP连接修改信令或者IP连接释放信令；并根据所述IP连接建立的信令、IP连接修改信令或者IP连接释放信令，建立与所述IP包实体以及至少一个所述接入层的层2的功能实体之间的IP连接、IP连接的修改或者IP连接的释放。
需要说明的是，该通信设备是与上述图1所示方法对应的通信设备，上述方法实施例中所有实现方式均适用于该设备的实施例中，也能达到相同的技术效果。该通信设备还可以进一步包括：处理器52，存储器53；收发机51与处理器52，以及，收发机51与存储器53之间，均可以通过总线接口连接，收发机51的功能可以由处理器52实现，处理器52的功能也可以由收发机51实现。
本公开的实施例还提供一种通信设备，包括：处理器、存储有计算机程序的存储器，所述计算机程序被处理器运行时，执行如上图1所述的方法。
本公开的实施例还提供一种计算机可读存储介质，包括指令，当所述指令在计算机运行时，使得计算机执行如上图1所述的方法。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本公开的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本公开所提供的实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本公开的技术方案本质上或者说对相关技术做出贡献的部分或者该技术方案的部分可 以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来控制相关的硬件来完成，所述的程序可存储于计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储器(Read-Only Memory，ROM)或随机存取存储器(Random Access Memory，RAM)等。
可以理解的是，本公开实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，模块、单元、子单元可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits，ASIC)、数字信号处理器(Digital Signal Processor，DSP)、数字信号处理设备(DSP Device，DSPD)、可编程逻辑设备(Programmable Logic Device，PLD)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本公开所述功能的其它电子单元或其组合中。
对于软件实现，可通过执行本公开实施例所述功能的模块(例如过程、函数等)来实现本公开实施例所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
此外，需要指出的是，在本公开的装置和方法中，显然，各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本公开的等效方案。并且，执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行，但是并不需要一定按照时间顺序执行，某些步骤可以并行或彼此独立地执行。对本领域的普通技术人员而言，能够理解本公开的方法和装置的全部或者任何步骤或者部件，可以在任何计算装置(包括处理器、存储介质等)或者计算装置的网络中，以硬件、固件、软件或者它们的组合加以实现，这是本领域普通技术人员在阅读了本公开的说明的情况下运用他们的基本编 程技能就能实现的。
因此，本公开的目的还可以通过在任何计算装置上运行一个程序或者一组程序来实现。所述计算装置可以是公知的通用装置。因此，本公开的目的也可以仅仅通过提供包含实现所述方法或者装置的程序代码的程序产品来实现。也就是说，这样的程序产品也构成本公开，并且存储有这样的程序产品的存储介质也构成本公开。显然，所述存储介质可以是任何公知的存储介质或者将来所开发出来的任何存储介质。还需要指出的是，在本公开的装置和方法中，显然，各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本公开的等效方案。并且，执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行，但是并不需要一定按照时间顺序执行。某些步骤可以并行或彼此独立地执行。
以上所述是本公开的可选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本公开的保护范围。

Claims (16)

  1. 一种接入层互联网协议IP包的处理方法，应用于接入层的层3的用户面功能实体，包括：
    所述接入层的层3的用户面功能实体，接收来自IP包实体的IP包，并发送给至少一个所述接入层的层2的功能实体；或者，接收来自所述接入层的层2的功能实体发送的数据包或者控制包，并发送给所述IP包实体；其中，所述接入层的层3的用户面功能实体、IP包实体以及所述接入层的层2的功能实体，为终端侧的功能实体或者网络设备的功能实体。
  2. 根据权利要求1所述的接入层IP包的处理方法，还包括：
    所述接入层的层3的用户面功能实体，在所述IP包发送或者接收失败时，对所述IP包进行重传。
  3. 根据权利要求1所述的接入层IP包的处理方法，还包括：
    所述接入层的层3的用户面功能实体，对接收的所述接入层的层2的功能实体发送的数据包进行排序，将排序后的IP包发送给所述IP包实体。
  4. 根据权利要求1所述的接入层IP包的处理方法，其中，所述接入层的层3的用户面功能实体包括：接入层的层3的源用户面功能实体和目标用户面功能实体，所述方法还包括：
    所述源用户面功能实体将IP包发送给所述IP包实体，通过所述IP包实体将所述IP包发送给所述目标用户面功能实体。
  5. 根据权利要求1所述的接入层IP包的处理方法，其中，所述IP包实体与一个或者多个所述用户面功能实体通信连接，所述IP包实体将IP包分发给一个或者多个所述用户面功能实体，所述方法还包括：
    多个所述用户面功能实体接收所述IP包实体分发的IP包。
  6. 根据权利要求1所述的接入层IP包的处理方法，其中，所述IP包实体通过所述层3的控制面功能实体，建立、修改或者释放与所述控制面功能实体对应的所述用户面功能实体，所述方法还包括：
    所述用户面功能实体接收与所述用户面功能实体对应的控制面功能实体发送的IP连接建立、修改或者释放请求；
    所述用户面功能实体根据所述IP连接建立、修改或者释放请求，建立与所述IP包实体以及至少一个所述接入层的层2的功能实体之间的IP连接、IP连接的修改或者IP连接的释放。
  7. 根据权利要求6所述的接入层IP包的处理方法，还包括：
    终端侧的控制面功能实体接收来自所述网络设备侧的控制面功能实体发送的所述IP连接建立的信令、IP连接修改信令或者IP连接释放信令；或者，
    终端侧的控制面功能实体向所述网络设备侧的控制面功能实体发送IP连接建立的请求信令、修改或者释放所述IP连接的请求信令。
  8. 一种接入层IP包的处理装置，应用于接入层的层3的用户面功能实体，包括：
    收发模块，用于接收来自IP包实体的IP包，并发送给至少一个所述接入层的层2的功能实体；或者，接收来自所述接入层的层2的功能实体发送的数据包或者控制包，并发送给所述IP包实体；其中，所述接入层的层3的用户面功能实体、IP包实体以及所述接入层的层2的功能实体，为终端侧的功能实体或者网络设备的功能实体。
  9. 根据权利要求8所述的接入层IP包的处理装置，其中，
    所述收发模块还用于在所述IP包发送或者接收失败时，对所述IP包进行重传。
  10. 根据权利要求8所述的接入层IP包的处理装置，其中，
    所述收发模块还用于对接收的所述接入层的层2的功能实体发送的数据包进行排序，将排序后的IP包发送给所述IP包实体。
  11. 根据权利要求8所述的接入层IP包的处理装置，其中，所述接入层的层3的用户面功能实体包括：接入层的层3的源用户面功能实体和目标用户面功能实体；
    所述源用户面功能实体的收发模块将IP包发送给所述IP包实体，通过所述IP包实体将所述IP包发送给所述目标用户面功能实体的收发模块。
  12. 根据权利要求8所述的接入层IP包的处理装置，其中，所述IP包实体与一个或者多个所述用户面功能实体通信连接，所述IP包实体将IP包分发给一个或者多个所述用户面功能实体；
    多个所述用户面功能实体的收发模块还用于接收所述IP包实体分发的IP包。
  13. 根据权利要求8所述的接入层IP包的处理装置，其中，所述IP包实体通过所述层3的控制面功能实体，建立、修改或者释放与所述控制面功能实体对应的所述用户面功能实体；
    所述收发模块还用于接收与所述用户面功能实体对应的控制面功能实体发送的IP连接建立的信令、IP连接修改信令或者IP连接释放信令；并根据所述IP连接建立的信令、IP连接修改信令或者IP连接释放信令，建立与所述IP包实体以及至少一个所述接入层的层2的功能实体之间的IP连接、IP连接的修改或者IP连接的释放。
  14. 一种通信设备，包括：
    收发机，用于接收来自IP包实体的IP包，并发送给至少一个所述接入层的层2的功能实体；或者，接收来自所述接入层的层2的功能实体发送的数据包或者控制包，并发送给所述IP包实体；其中，所述接入层的层3的用户面功能实体、IP包实体以及所述接入层的层2的功能实体，为所述通信设备的功能实体，所述通信设备为终端或者网络设备。
  15. 一种通信设备，包括：处理器、存储有计算机程序的存储器，所述计算机程序被处理器运行时，执行如权利要求1至7中任一项所述的方法。
  16. 一种计算机可读存储介质，包括指令，当所述指令在计算机运行时，使得计算机执行如权利要求1至7中任一项所述的方法。
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